(Original Entry) A M8.2 aftershock (a large quake by itself) to the December 26th quake struck near Sumatra earlier today at roughly 11PM local time. Authorities in Sri Lanka and Thailand have ordered evacuations. The Pacific Tsunami Warning Center issued this bulletin.

THIS CENTER DOES NOT HAVE SEA LEVEL GAUGES OUTSIDE THE PACIFIC SO WILL NOT BE ABLE TO DETECT OR MEASURE A TSUNAMI IF ONE WAS GENERATED. AUTHORITIES CAN ASSUME THE DANGER HAS PASSED IF NO TSUNAMI WAVES ARE OBSERVED IN THE REGION NEAR THE EPICENTER WITHIN THREE HOURS OF THE EARTHQUAKE.